There are innumerable recipes on the InterWeb for Bouillabaisse, it's worth noting that the actual ingredients vary from one French town to the next and are really a way to make use of under-utilised catch.

So you can put any fish in the dish.

I often get some Mussels, and in the above photo, big Prawns, to add variety. So this is Dogfish/Conger/Snapper/Mussel/Prawn - Bouillabaisse

Along with some Basil from my garden, some Potatoes and a bunch of ripe Tomatoes, it's a delicious and easy meal.

The dip in the photo is Rouille, worth making, (recipes on the InterWeb) to eat with the Baguette and also mix into the stew.